Drinking fountain



y 1934. H. c. KELLOGG I 59,366

DRINKING F ouNTAIN:

Filed June 2.7, -l929 3 Sheets-Sheet l May 22, 1934.

H. c. KELLOGG munxme FOUNTAIN Filed June 27; 1929 3 Sheets-Sheet 2.

FIG 56 55 565 v FER-* lllliit n Mayzz, 1934.

H. c. KELLOGG .DRINKING FOUNTAIN 3 Sheets-Sheet 3 Filed June 27, 1929ATTOPIVE'K atented May 22, 1934 UNITED STATES The invention in some ofits aspects relates to liquid cooling generally while in still otheraspects it has to do more particularly with improvements in drinkingwater coolers and drinking fountains.

One object of the invention is the provision of an improved type ofdrinking fountain which in general form, size and appearance maycloselyapproximate the widely used fountains of the floor pedestal type or thewallbracket type or the wall niche type, but which is radically disawater-cooling unit built into the fountain casing structure directlybeneath the receptor thereof, and preferably having the receptorconstituting a part of the enclosing casing for the unit. Another objectof the invention is th provision of a fioor pedestal type. of fountain fthe character last referred to which is adapted to constitute a part ofa refrigerating system such as is disclosed in my copending applicationSerial No. 369,669, filed June 10, 1929, and which has the equalizingtank or chamber of the system enclosed within the supporting column ofthe fountain.

incidental or ancillary to the foregoing will appear from the followingdescription which sets forth in connection with the accompanyingdrawings several preferred forms of the invention.

In the drawings, Fig. 1 is a view partly in side elevation and partly invertical section of a drinking fountain of the floor pedestal type whichembodies my improvements. v

Fig. 2 is a plan view of the upper part of the fountain shown in. Fig.1.

Fig. 3 is a side elevation of the structure shown in. Fig. 2, looking ina direction at right angles, to the line of sight in Fig. 1.

Fig. 4 is a section on the line 4-4 of Fig. 1."

Fig. 5 is a vertical sectional view on an enlarged scale of the coolingunit of the fountain shown in Fig. .1, the section being taken on the 5broken line 5-5, Fig. 4.

Fig. 6 is a section taken on the line 66, Fig. 1.

. Fig. 7 is a vertical sectional view of a wall or bracket type ofdrinking fountain embodying my improvements.

Fig. 8 is a front elevation of the fountain shown inFig. 7.

Fig. 9 is a plan view of the fountain shown in Fig. 7.

i Fig. 10 is. a fragmentary vertical section show tinguished from suchprior fountains by having Other objects of the invention more or lessPATENT OFFICE DRINKING FOUNTAIN Herbert G. Kellogg, Detroit, Mich.,assignor to Liquid Cooler Corporation, Detroit, Mich., a corporation ofMichigan Application June 27, 1929, Serial No. 374,071

4 Claims. (Cl. 62-141) ing a modified form of construction which may beapplied to the fountain as shown in Fig. 1 or the fountain shown in Fig.'7.

Fig. 11 is a fragmentary sectional view taken on the line 11-11, Fig.10.

Fig. 12 is a vertical section showing a wall niche type of fountainembodying my improvements, the section being taken on the broken line12-12,

Fig. 13 is a section on the line 13--13, Fig. 12.

Referring in detail to the construction illustrated and first to theform of construction shown in Figs. 1 to 6, inclusive, the upper part ofthe fountain shown in said figures presents a chambered structure orcasing which comprises areceptor or basin l of vitreous china whichconstitutes the top wall of the said casing structure as well asperforming the usual functions of the receptor of fountains of thereceptor type, a side wall' section 2 and a bottom wall section 3. Thecasing sections 2 and 3 are preferably made of vitreous enameled .ironand are connected together by screws 4, Fig. 3, the section 2 beingformed on its inner side with lugs (not shown) to receive said screws.The receptor 1 has a depending flange 1 which fits within the side wall2 and the two sections 1 and 2 are firmly secured together by cementingthe joint between them in accordance with usual practice in structuresof this character. 35

The casing or chambered structure thus constituted is supported upon thetop of a tubular column 5, the bottom wall section 3 having alargeaperture with depending annular flange 3 which fits within the upper endof the column 4. The

elongated oval form, the length of the basin extending to the fulldiameter of the receptor while its width is considerably less, the sidesof the basin being flanked by the sloping sides 1. The bottom of thebasin has an elevated section 1 which is apertured to receive a watersupply pipe 7 upon the upper end of which ismounted a nozzle 8 fittedwith a sanitary guard 9. The threaded upper end of pipe '7 is fittedwitha nut '7 to adjustably engage the under side of receptor 1 and thebase of nozzle 8 is made hexagonal in form to pipe 7. The bottom wall ofthe basin slopes at 1 to greater depth and isapertured to receive adrain fitting 10 for the discharge of waste water.

Within the chamber directly beneath and partly enclosed by the receptor1 is arranged a water cooling unit 11, the construction of which is bestshown in Fig. 5. This unit comprises an evaporator casing or shell 12which is preferably formed from two drawn steel members 12 and 12 andsecured together at 13 by a flanged and hermeti cally sealed joint. Asshown the casing is cylindrical in form and has its top and bottom wallscentrally recessed. The top wall of the casing is formed with a centralaperture in which an internally threaded fitting 14 is hermeticallysecured. In this threaded fitting is mounted a depending tubular fitting15 which, at'its upper end, has a threaded aperture to receive the endof a tube 16 which serves to supply liquid refrigerant to the coolingunit. At its lower end the tube 15 carries an inlet valve device whichcomprises a valve seat member 17 which fits tightly within the lower endof the tube 15, a needle valve 18 and a threaded and apertured cap 19which is screwed on the lower end of the tube 15 and tightly clamps thevalve seat member 1'? in position. The cap 19 also serves to retain theneedle valve in operative position, the said valve having a reducedrodlike extension 18 which projects throughthe aperture of the cap 19.The needle valve 18 is formed from triangular stock so that while it isguided within the passage of the valve seat member 17, free passages areprovided for liquid to flow past the valve. The valve seat member 17also is fitted at its upper end with a tubular strainer or filter 20 offine wire gauze.

Centrally arranged within the shell of the evaporator is a largeopen-topped, cup-shape float 21. This float has its bottom wall formedwith a central aperture in which is mounted an up-' standing tube 21which loosely engages the depending tube 15 and serves to guide thefloat thereon for vertical movement. A metal plate or strap 21 issecured to the bottom of the fioat so as to underlie and engage the endof the valve extension 18 so that when the float rises it carries thevalve upward against its seat. The float thus serves to control thevalve-18 so as to maintain a bodyof liquid refrigerant in the shell. Thefloat has its weight and size so proportioned that it is adapted tomaintain the normal liquid level at the line a:--:z: in Fig. 5.

The top wall of the evaporator shell is also apertured to receive athreaded fitting 22 which is hermetically connected to the shell.Mounted in this fitting 22 is an automatic valve device which comprisesa tubular valve seat. fitting 23 which is screwed into the fitting 22with a soft metal packing 24 interposed between the two parts. To thelower end of the fitting 23 is secured the upper also is formed with aflange 26 to which is secured the lower end of a metallic bellows 27which has its upper end secured to the flange of a valve member 28.which cooperates with the valve seat member 23. as clearly shown in Fig.5. 'Interposed between the flange of. the

member 26 and the, flange of the valve 28 'such a purpose.

is 'a coil spring 29. The member 26 extends upward within the bellowsand the coil spring to a point slightly below the valve 28 so as toafford a stop to limit the opening movement of the valve. In the upperthreaded aperture of the valve seat member 23 is secured an elbowfitting 30 to which is connected a tube 31 adapted to conduct vaporizedor gasified refrigerant from the evaporator shell to the inlet of asuitable compressor. It will be seen that the gaseous refrigerant withinthe evaporator shell can enter the passage 26 of the valve device andthus gain access to the interior of thecasing member 25 so as to subjectthe flanged valve 28 to a pressure tending to open the valve against thetension of the spring 29; and by suitably adjusting the member 26 in thethreaded nipple 25 the valve can in effect be adjusted toward its seatand thus adapted to open or close at different vapor pressures.

The top wall of the evaporator shell is further provided with a threadedinlet fitting 32 to receive an elbow 33 to which in turn is connected aninlet water pipe 34. And the said shell is also provided with anapertured water discharge fitting 35 to which is connected the waterpipe 7 which supplies water to the nozzle 8. Within the evaporator shelland occupying a considerable part of the annular space between the sidewall of said shell and the side wall of the float 21 are disposed a pairof metal cooling coils 86 and 36 the coil 36 being connected at itsupper end to the water inlet fitting 32 and at its lower end to thelower end of the coil 36 which in turn has its upper end connected tothe water discharge fitting 35. The tubing forming the two coils ispreferably formed of copper or other suitable metal of high thermalconductivity and is drawn to the form illustrated in Fig. 5 which, incross section, resembles the figure 8 and which, because of itsvout-of-round form, is adapted to expand without injury in case watershould inadvertently be frozen in the coils.

The water supply pipe 34 passes downward through the casing-section 3and then turns inward through an aperture 5 in the upper part of thetubular column 5 and extends downward 1 through said column and thefloor pedestal 6 and from there mayextend through a suitable hole orchannel in the floor structure as will readily be understood. In theshort section 34 of the water supply pipe which is disposed outside ofthe casing and column structure of the fountain it is provided with amanual control valve 37 which may be of any construction commonly usedfor The drain fitting 10 of the receptor, at its lower end has a slipconnection with the usual drain pipe 38 which extends downward throughthe casing structure that encloses the cooling unit 11 and thence downthrough the tubular column 5, paralleling the water supply pipe 34. Theliquid refrigerant supply pipe 16 and the gaseous refrigerant dischargepipe. 31 are bent down and around the coolingunit 11 and are alsocarried downward through the column 5 as indicated, and may extendthrough suitable floor channels or ducts to any desired point where thecompressor and condenser of the system are located, it being understoodthat a number of fountains with individual cooling units may-thus beconnected to the same compressor and condenser. V

Within the column 5 is also enclosed an equalizing tank or chamber 39which is supported by a branch fitting 31 through which the gaseousrefrigerant pipe 31 is connected with the interior of the tank. Aforaminous tube 40 which may 1! have its wall made of fine wire gauze isaxially disposed in the tank 39 and connected at its lower end with thepipe fitting 31 and the space in the tank surrounding the tube 40 isfilled with the cooling unit 11 with a suitable insulating materialsuch, for example, as granulated cork, as shown at 42.- It willbeunderstood that the insulating material can be introduced before. thereceptor member 1 of the fountain is finally placed in position.' Thisis made possible by the nature of the above-described connections of thewater supply and .drain pipes with the receptor. The slip joint betweenthe drain fitting 10, and pipe 38 permits'the drain connection to bemade by simply lowering the receptor into operative position and theonly other mechanical connection is effected by the nozzle 8. The nut7"having first been positioned by trial on pipe '7, it is a simplematter to lower the receptor into position and secure it by screwingnozzle 8 on the pipe '7. Cement can then be applied to the joint betweenthe receptor and side wall 2.

The mounting of the receptor is also advantageous in connection withinspection and servicing of the cooling apparatus. It willbe observedthat all of the refrigerant and water connections of the cooling unit12are on the top of the u'nit.

Hence by simply removing the receptor all of these connections areexposed for inspection and test and the liquid refrigerant float valveassembly and the suction line cut-off valve assembly each can theneasily be removed from the cooling unit.

The operation of the fountain as above described will now be explained,it being understood that the fountain constitutesa part of arefrigerating system of the character disclosed in my previouslymentioned 'copending application Serial No. 369,669. It will sufficehere to state that the said system comprises a suitable motor drivenrefrigerant compressor which has its discharge connected with acondenser in which the compressed gaseous refrigerant discharged by thecompressor is cooled and liquified. This. conpipe 31 is connected with aswitch which controls the electric motor that drives the compressor,said switch being actuated by the pressure in the low side of the systemand being adapted, according to its adjustment, to start the motor whenthe pressure rises to a certain predetermined point and to stop themotor when the pressure falls to a certain lower point. For example,where drinking water is-desired at an average temperature of 50 F. thesaid switch might be set to close when the refrigerant pressure in-thelow side of the system rose to a point corresponding to a temperature inthe evaporating chamber of the cooler of 53 and to open when thepressure falls to a point corresponding to a temperature of 47 F. As themotor-driven compressor,- condenser and switch mechanism of thecharacter described are well known in the art, I have not deemed itnecessary to illustrateathem, though reference may be had to my saidcopending application Serial No. 369,669 for a diagrammatic illustrationof the system. 1 I

When the manual valve 37 is operated to draw water by a user of thefountain, the water entering through the supply pipe 34 passes throughthe cooling coils 36, 36 and thence through the discharge pipe 7 to thenozzle 8 which projects a stream or jet of the water in the well knownmanner as illustrated in Fig. 1, the user drink-' scribed in mycopending application Serial No.

369,669, is characterized by certain novel features incident to the useof the improved type .of float valve illustrated, said float valve andits method Y of operation being the joint invention of the presentapplicant and Edward M. May as set forth in the application Serial No.295,174, filed July 25, 1928 (Letters Patent No. -1,885,836). While inthe/use of such a float valve various different refrigerants can beemployed, such as sulphur dioxide, methyl chloride, and ethyl chloride,it may be assumed for the purpose of the present explanation that therefrigerant employed is sulphur'dioxide and that the usual mineral oilsuitable for lubricating the compressor is charged into the system alongwith the refrigerant. When water is drawn through the cooling coils inthe manner above stated the ab-' sorption pf heat'by the liquidrefrigerant causes ebullition of the latter with resultant release ofgaseous refrigerant and a corresponding increase in pressure within theevaporator shell and throughout the low side of the system, it beingassumed thatthe automatic cut-off valve 28. is more or less open, asshown in Fig. 5. The pressure in the low side having been reduced to thepoint corresponding to 47 F. by the previous operation of thecompressor, the latter remains idle while the pressure is graduallyincreasing incident to the draft of the water to the point correspondingto the temperature of 53, whereupon the automatic switch starts themotor and the compressor in operation. 'The period necessaryfor the riseof the pressure through the range specified is in the present apparatusvery substantially lengthened by the provision of the equalizing tank39,the adsorbent material therein being adapted to adsorb a considerablemass of the refrigerant and thus give the effect of. a

much larger low side capacity. w

When the compressor is startedin the manner stated the reduction of thepressure within the shell of the cooling unit hastens the ebullition ofthe refrigerant therein with the result that thebubbles of gas, risingthrough the liquid reliquid until the mass of bubbles or foam is greatenough to rise above the edge of the float valve 21 and fall over intothe cavity of the float from a refrigerant, is automatically returned tothecompressor. As has been explained in my copending application SerialNo. 369,669 as well as in the aforesaid application of the applicant andEdward M. May, Serial No. 295,174, the float 21 can, if desired, haveits height so proportioned to its weight that the temporary rise of theliquid level in the evaporator chamber when the compressor is firststarted will ,be just suflicient to cause some of the stratum oflubricant floating on the refrigerant to flow over the rim of the float;and then with continued operation of the compressor the level fallssomewhat and thereafter additional surplus lubricant will be removedfrom the cooling unit by the formation and discharge of foam as abovedescribed.

It .will, of course, be understood-that evaporation of liquidrefrigerant in the cooling um't causes a corresponding lowering of theliquid level and this results in a lowering of the float 21' sufficientto permit the needle valve 18 to be forced from\ its seat by thepressure of the liquid refrigerant in the high side of the system, sothat the supply of liquid refrigerant in the unit is re- Q newed, andthenormal liquid level maintained with relatively slight variations. Therise and fall of the float 21 to effect this result is very slight.

' In case of a prolonged draft of water'through the cooling unit, thecompressor may continue in action for a more or less correspondinglylong period of time, depending upon the capaaity of the compressor andof the' number of fountains say to the pressure corresponding to 45.

thereof.

or cooling units served thereby. Where there are a number of coolingunits and two or more of them chance to be in simultaneous operation,the operation of the compressor is of course likely to becorrespondingly prolonged. In any case, either by virtue of the. surpluscapacity of the compressor in comparison with the unit or units thatchance to be in operation, or by reason of the termination of the draftof water, the pressure on thelow side is finally reduced by theaction ofthe compressor to the cut-out point of the switch and the compressor isthen stopped. The

. period of operation of the compressor, however,

is prolonged by reason of the added capacity afforded by the equalizingtank 39 and the adsorbent material therein. The equalizing tank thus hasthe effect of increasing the length of the compresso'rperiods ofoperation and idleness and consequently of reducing the frequency ofstarting and stopping of the apparatus with corresponding reduction inthe wear and depreciation Theautomatic cut-"oif valve'mechanism 25, forthe service in question, would'ordinarily haveits valve 28 so adjustedin relation to its seat that if the automatic switch were tampered withby an attendant, say for example, so as to lower 'the cut-outtemperature, the said valve 28 would the cooling unit fell: to a pointsomewhat below that corresponding to the temperature of 47",

Continued operation of the compressor after the closure of the, valve 28would not in such case further lower the temperature within the coolingunit and consequently any danger of freezis impossible to tamper with itwithout opening I up the refrigerant systemand this an ill-advisedattendant would seldom if ever attempt. However, even if this were doneand the system were operated in a manner to completely freeze up thecooling coils 36* and 36, no injury to the apparatus would resultbecause the form of the coil tubing is such as to permit repeatedexpansions incident to freezing without injury.

In the form of fountain shown in Figs. 7, 8 and 9 my improvements areapplied to the wall or bracket type of fountain and the fountainreceptor 43 is formed integral with the side wall 44 of the casingstructure which encloses the cooling unit, the said casing beingcompleted by the wall bracket member 45 upon which the receptor andeasing member 43-44 is supported, the two parts being secured togetherby screws (not shown) in a well known manner. .In this case the entirereceptor and casing structure is shown as made of vitreous enamelediron.

Within the casing structure is disposed the cooling unit 46 which issimilar to the cooling unit 11 of the first described fountain and neednot be further described. The coolingunit has its water discharge pipe47 extending upward through the bottom wall of the receptor with anozzle 48 secured on its upper end, the said nozzle being fitted with asuitable guard 48*. A water supply pipe 49 is connected to the waterinlet of the cooling unit. A liquidrefrigerant inlet pipe 50 'and agaseous refrigerant discharge pipe 51 are connected with the refrigerantinlet and outlet, respectively, of the cooling unit. The receptor has adrain fitting 52 which connects with a drain pipe 53, the latter beingfitted with a suitable trap 53*. The'water and drain pipes and therefrigerant tubes are enclosed within the easing and bracket structuresand pass through a suitable aperture in the wall as indicated in Fig. 7.The water supply pipe 49 is fitted-with a manual control valve 54 oneend and the operating handle of which are disposed on the outer side ofthe bracket member 45. as shown in Figs. Band 9. The cooling unit ofthis fountainshould be insulated in the manner shown and described inconnection with the first form of fountain, but the insulation has beenomitted in the drawings to permit a clearer illustration of themechanical parts.

- The operation of the fountain shown in Figs. '7, 8 and 9 is exactlythe same as that of the fountain shown in Fig. 1 with the possibleexception that the former fountain has no equalizing tank or chamber sothat the length of the operating cycle of the system'jmight be shorterfor the wall fountain than for the pedestal fountain unless the formerwere connected in a system containing one or more equalizing tanks suchas the tank 39 of the pedestal fountain.

Figs. 10 and 11 illustrate a structural modification which is applicableto the pedestal fountain shown in Fig. 1 and also to the wall fountain h1,959,365 shown in Fig. 7. The construction illustrated in Figs. 10 and11 differs from that of the floor and wall fountains above describedonly as to the construction of the receptor. That is to say, in this I,last construction, while the receptor element 55 is formed of vitreouschina, said element comprises only the basin or receptor proper and theside wall member 56 of the casing structure is formed with sloping sides56 upon which the flange of the receptor rests with an interposed joint56 of cement. In this construction'the casing mem-' ber 56 is preferablymade of vjtreous enameled iron. a

In both the last described construction and that shown in Figs. 7, 8 and9 the construction and mounting of the cooling unit \and the receptor]make possible the easy assembly and the easy inspection and servicing ofthe cooling apparatus, just as in the case'of the pedestal typeapparatus first described.

In Figs. ,12 and 13 an embodiment-of certain of my improvements is shownin the form of the niche type of drinking fountain. Here the specialcasing structure consists of a single vitreous china section 57 whichserves, in conjunction with the wall structure 58 in which the casingsection 5'7 is recessed, to enclose the cooling unit of the fountain.The upper part of the section 5'7 forms the usual recessed hood 5'?while the lower inwardly sloping: bottom '57 of said section, inconjunction with the back wall and the upstanding ledge 5'? across thefront thereof forms the receptor or'basin of the fountain. A dependingapron 5'2 acrossthe front of the section 5'? forms a front wall of thecasing structure enclosingthe cooling unit 59. The chamber provided forthe cooling unit is disposed off center with respect to the casingsection 5'7, the wall in which the fountain-is mounted being carriedunder the other similar to the pedestal side of the receptor as shown bythe dotted line 58, Fig. 13, which indicates one of the upright walls ofthe cooling unit chamber thus afforded by the wall in which the fountainis set.

The cooling unit 59 of this fountain is the same as the cooling units ofthe previously described fountains and has a water discharge pipe 60which extends upward through the receptor 57 and is fitted with a nozzle60. 61.is the water inlet pipe of the cooling unit, said pipe beingfitted with a control valve 62 that is actuated by the handle 62 on theouter face of the apron section 57 of the casing. 63 is the drain pipeof the fountain and 64 and 65 are the liquid refrigerant inlet andgaseous refrigerant outlet pipes, respectively,of the cooling unit. Thepipes 61, 63, 64 and 65 extend downward through a suitable duct in thewall structure, the water supply and drain pipes connecting,respectively, with a suitable source of supply and the buildingdrainrwhile the refrigerant tubes are connected with a motor drivencompressor and condenser of a system such as has already been described.

- The cooling unit 59 is surrounded with suitable heat insulatingmaterial 66, the wall back of the fountain being formed with an aperture58 having a removable cover 6'! to permit the ready introduction of theinsulation packing.

The operation of the last described fountain is and bracket types offoun-- tains which have already been described.

It will be observed that the cooling unit employed in my improvedfountains is so exceeding- 1y compact in proportion to its cooling,capacity that it ispossibleto enclose it in a casing structure thatexceeds by little, if any, the normal bounds of the receptor structureordinarily employed in pedestal and wall fountains of thecharacter inquestion. The cooling unit furthermore is rugged and reliable inoperation, simple in construction and capable of being produced at amuch lower cost than any prior cooling units of similarcapacity known tome. The arrangement of the automatic cut-off valve within the shell ofthe cooling unit makes it difficult, in fact practically impossible,to'freeze up the water coils by tampering withthe motor control switchof the system;

By enclosing my improved cooling unit directly beneath the receptor ofthe fountain I secure I a fountain of pleasing appearance and relativelylow cost. Furthermore the fountain has high thermal efficiency becauseof the location of the cooling unit in direct proximity to the nozzle ofthe fountain, so that there are no losses from cold water lines such ascharacterizecirculating water systems. Indeed, my improved constructionis such that all water drawn, including that first issuing from thenozzle when the control valve is opened, is adequately cooled. Thisnearly complete avoidance of heat losses is due to several features ofthe construction: First, the arrangement of the cooling unit immediatelybelow the receptor makes possible the extremely short connection formedby pipe 7 between the cooling coil and the discharge nozzle. Theshortness of pipe '7, its direct metallic connection with the coolingunit and its insulation result in keeping said pipe and even the nozzle8 so cool that the temperature of the water in pipe 7 and even in thenozzle 8 is not permitted to get noticeably warm. This result is in partmade possible, furthermore, bythe fact that the'manual water controlvalve which, as a practical matter, must be'more or less fully exposedfor actuation, is not mounted in the water discharge conduit '7 betweenthe cooling unit and th'e nozzle, but rather in the inlet water pipe 34leading to the cooling unit.

In the case of the floor type fountain the space within the supportingcolumn of the fountain is used to very great advantage to enclose theequalsupply pipe 34 has a portion thereof carried outside the-casingstructure simplifies and facilitates the installation of. the manualcontrol" valve 3'7. Also the carrying of all other pipes through acommon opening in the bottom wall of the casing structure formed by theparts 1, 2 and 3 is advantageous. f

It will be apparent 'from'the several embodiments of the invention thathave been illustrated and described that my improvements lend themselvesto various forms and types of fountain construction and it willbe-understood that the constructions illustrated can be varied widelywithout departing from the invention as defined in the appended claims.

What I claim is:

1. In a drinking fountain, the combination of a receptor having a nozzleadapted to project a stream of water and a drain opening for wastewater; an evaporative water-cooling unit disposed beneath the receptor;supply and discharge pipes for liquid and gaseous refrigerant,respectively,

connected to saidcooling unit and adapted to be operatively connectedwith refrigerant lique-.

the said nozzle of the receptor and the water inlet pipe beingadapted tobe connected with a source of water supply and the-connections of all ofthe'said pipes with the cooling unit being at the top thereof; a drainpipe to which the receptor drain opening is connected; a casingstructure surrounding thecooling unit and the adjacent parts of the saidpipes, the receptor constituting a removable top wall section of theeasing structure and the connections between the drain opening-of thereceptor and the drain pipe and between the nozzle of the receptor andthe water discharge pipe being separable, whereby the top of the coolingunit and all of its connec tions can be uncovered for inspection andservicing by removal of the receptor from the casing structure.

2. In a drinking fountain, the combinationof a. receptor having a nozzleadapted to project a stream of water and a drain opening for wastewater; an evaporative water-cooling unit disposed beneaththe receptor;supply and discharge pipes for liquid and gaseousrefrigerant,respectively, connected to. said cooling unit and adapted to beoperatively connected with refrigerant liquefying means; inlet andoutlet pipes for water to be cooled connected to said cooling unit, thewater outlet pipe leading from the cooling unit to the said nozzle'ofthe receptor and the water inlet pipe being adapted to be connected witha source of water supply and the connections of the refrigerant pipeswith the cooling unit be,- ing at the top thereof; a drain pipe to whichthe receptor drain opening is connected; a casing structure surroundingthe cooling unit and the adjacent'parts of the said pipes, the receptorconstituting a removable top wall section of the casing structure andthe connections between the drain opening of the receptor and the drainpipe and .between the nozzle of the receptor and the water dischargepipe being separable, whereby the top of the cooling unit and itsrefrigerant connections can be uncovered for inspection and servicing byremoval of the receptor from the casing structure. 4

3. In a drinking fountain, the combination of a receptor having a nozzleadapted to project a stream of water and a drain opening for wastewater; an evaporative water cooling unit disposed directly beneath thereceptor; a bowl-like casing structure upon which the receptor rests andwhich serves in conjunction with the receptor to enclose the coolingunit, said casing structure having a central opening in its bottom wall;a

supporting structure for the casing comprising a. hollow floor pedestalwith a top opening and a eous refrigerant, respectively,

tubular column having its lower end supported on the pedestal inregister with the top opening thereof and its upper end supporting theaforee supply and discharge pipes for liquid and gasextending upwardthrough the pedestal, column and easing structure and operativelyconnected to the cooling unit, said pipes being adapted to beoperatively connected with refrigerant liquefying means; inlet andoutlet pipes for water to be cooled connected to said cooling unit, thewater outlet pipe leading from the cooling unit to the said nozzle ofthe receptor and the water inlet pipe extending through the pedestal,column and casing to its connection with the cooling unit; and a drainpipe to which the receptor drain opening is connected and which extendsdownward through the said casing, column and pedestal, the said receptorhaving separable connections with the easing structure and the waterdischarge and drain pipes, whereby the cooling unit can be exposed forinspection by removing the receptor.

4. In a drinking fountain, the combination of :a receptor having anozzle adapted to project a stream of water and a drain opening forwaste wates; an evaporative water cooling .unit dispose *directlybeneath the receptor; a casing and supporting structure comprising aportion surrounding the cooling unit and a' chambered bracket-likeportion extending laterally from the other portion and adapted to beattached to an upright wall; supply and discharge pipes for liquid andgaseous refrigerant, respectively, connected to said cooling unit andadapted to-be operatively connected with refrigerant liquefying means,said supply and discharge pipes extending from the cooling unitlaterally through -the chambered bracket-like portion. of the casing andsupporting structure; inlet and outlet pipes for water to be cooledconnected to the said cooling unit, the water outlet pipe leading fromthe cooling unit to the said nozzle of the receptor and the'water inletpipe extending from the cooling unit laterally through the chamberedbracket-'

